Even 40 years after it was designed, a groovy, free-flowing stone castle on Lake Geneva remains fit for a modern-day prince and his wife, French actress Clotilde Courau

The Living Room

The Living Room

Once upon a time there was a prince who lived in a castle built of stone. The walls were lined with royal portraits, and when guests arrived—a dazzling group that included kings and queens— they were ushered into a 1970s living room complete with a semicircular sofa and a central fireplace shaped like the mouth of a fish. “You could call it a modern castle,” says Prince Emanuele Filiberto di Savoia of the Pink Panther-worthy palace that he calls his home.